Is it possible to have Tree view with Non persistent entity?

I want to display the data from REST API in the form of Tree structure i.e. based on certain attributes I will click them and then display the associated records. All entities are non persistent so existing widgets on app store are not working ? Any leads on how to design a page to have the hierarchy like structure. Attached image represents a bit from the requirement.   Multiple Products & Market will be displaying on the grid, when user click  on any record categories and total price should come and on click of this all items and price will appear. Please let me know if further details required.
1 answers

This is possible with my tree view widget:

Demo project:

You might need to create additional non-persistent objects for the treeview, you could use those in the demo project as a starting point.